Tool for inserting and removing pin for bucket tooth

Abstract

Pin insertion and removal tool includes a main block and a holder cup or socket for holding a pin to be inserted to secure a tooth onto a shank of a bucket. The holder cup or socket is secured to a holder block which is in turn secured to the main block. An extractor pin is secured to an extractor block, and the extractor block is secured to the main block. Both the extractor pin and the holder cup or socket are spaced apart from the main block by predetermined distances. The main block includes impact portions which receive hammer blows to set the pin and to remove the pin, as required. Adjacent to the holder cup or socket is a pin setting face that is used to completely insert the pin after it has been started and is sufficiently into the tooth and shank to remove the socket and tool from the pin and to move the tool slightly to provide direct force against the pin for setting the pin by hammer blows on the pin setting impact portion of the main block.

What I claim is: 
     
       1. Tool apparatus for inserting and extracting a pin securing a tooth to a shank, comprising, in combination: main block means, including a main block,   a bottom surface,   a top surface,   a first striking face comprising a first end of the main block and adapted to be struck when setting a pin, and   a second striking face comprising a second end of the main block and adapted to be struck when extracting a pin;     holder means secured to the main block means, including a holder block secured to and extending downwardly from the bottom surface,   a socket for holding a pin for the initial setting of the pin secured to the holder block and spaced apart from the bottom surface a first predetermined distance, and   a setting face laterally adjacent to the socket and adapted to be disposed against the pin after the initial setting of the pin for completing the setting of the pin, and     extractor means secured to the main block means for extracting a pin, including an extractor block secured to and extending upwardly from the top surface, and   an extractor pin secured to the extractor block and extending outwardly therefrom generally parallel to the top surface of the main block means and spaced apart from the top surface a second predetermined distance, which distance is substantially the same as the first predetermined distance.     
     
     
       2. The apparatus of claim 1 in which the bottom surface is adapted to be disposed on the tooth while the pin is being set. 
     
     
       3. The apparatus of claim 1 in which the top surface is adapted to be disposed on the tooth while the pin is being extracted. 
     
     
       4. The apparatus of claim 1 in which the socket of the holder means includes a longitudinal axis, and the longitudinal axis is generally parallel to the bottom surface in order to properly orient and hold the pin during the initial setting of the pin. 
     
     
       5. The apparatus of claim 1 in which the holder block extends downwardly from the bottom surface between the first and second striking faces. 
     
     
       6. The apparatus of claim 5 in which the setting face comprises a front face of the holder block. 
     
     
       7. The apparatus of claim 1 in which the socket extends internally outwardly from the front face. 
     
     
       8. The apparatus of claim 1 in which the extractor block extends upwardly from the top surface between the first and second striking faces. 
     
     
       9. Tool apparatus for extracting and inserting a pin securing a tooth to a shank, comprising, in combination: a main block,   an extractor pin secured to the main block for extracting a pin;   setting means secured to the main block for holding a pin and for setting the pin;   reference means secured to the main block, including a first reference arm disposed a predetermined distance from the extracting pin, and   a second reference arm disposed the predetermined distance from the setting means; and     striking face means secured to the main block and adapted to be impacted for extracting a pin and for setting a pin.   
     
     
       10. The apparatus of claim 9 in which the setting means includes a socket for holding a pin. 
     
     
       11. The apparatus of claim 9 in which the setting means includes a setting face adapted to be disposed against a pin while setting the pin. 
     
     
       12. The apparatus of claim 11 in which the setting means includes a socket disposed adjacent to the setting face for initially holding the pin for setting. 
     
     
       13. Tool apparatus for inserting and removing pins used to secure elements together, comprising, in combination: main block means movable for inserting and removing pins;   extractor means secured to the main block means and extending outwardly therefrom for extracting a securing pin;   a first striking face on the main block means for striking to cause the extractor pin to move longitudinally to extract the securing pin when struck;   a first surface fixedly secured to the main block means against which the securing pin is disposed for inserting the securing pin; and   a second striking face on the main block means for striking to insert the securing pin disposed against the first surface.   
     
     
       14. The apparatus of claim 13 in which the extractor means has a longitudinal axis and it moves in a direction generally parallel to the longitudinal axis when the first striking face is struck. 
     
     
       15. The apparatus of claim 13 in which the first striking face is disposed at an angle other than perpendicular to the longitudinal axis. 
     
     
       16. The apparatus of claim 13 in which the main block means includes a holder boss, and the first surface is disposed on the holder boss. 
     
     
       17. The apparatus of claim 13 in which the main block means includes a first portion spaced apart from the extractor means a first predetermined distance, and a second portion spaced apart from the first surface a second predetermined distance for providing the predetermined distance between the main block means and the extractor means and the first surface, respectively. 
     
     
       18. The apparatus of claim 13 in which the main block means includes reference block means to provide a predetermined spacing between the extractor means and the reference block means and between the first surface and the reference block means. 
     
     
       19. The apparatus of claim 13 in which the extractor means has a first axial length and the reference block means has a second axial length which is greater than the first axial length.